period frequency spectrum的意思|示意

Spectrum analysis showed that the main period of low frequency sea level variations at both coasts was annual, while that of sea level differences between the two coasts was semiannual.

谱分析显示，两岸的水位低频变化均以年周期为主，但两岸间的水位差却以半年周期为主。

The frequency in the response spectrum where the zero period acceleration asymptote begins.

频率响应谱中的零期渐近开始加速。

The transmission spectrum of a novel long period fiber grating written with the high frequency CO2 laser pulses is theoretical analyzed.

对采用高频CO2激光脉冲写入的新型长周期光纤光栅的透射谱进行了理论分析。

Load spectrum of danger points was simulated by collecting the working frequency of different types of cranes in a period time.

采集不同类型，不同额定起重量起重机一段时间内相应起重量的工作次数数据，以模拟出危险点处相应的载荷谱。

After the chatter frequency is idenrified through the power spectrum of the chatter signals dy carrying out FFT, the best phase difference and the related tooth cutting period are calculated.

然后根据颤振系统与切削周期的能量关系，计算出最优相位差及相应的切削周期；

Cyclic period chat spectrum estimation is used on parameters estimation such as carrier frequency, chip width and amplitude.

参数估计主要对直扩信号的载频、码片时宽和幅度进行了估计。